[gnote] Replace VSeparator with Separator

[Aurimas Černius <aurimasc src gnome org>]

commit ac3a4a0d37416b20945069ad648467c3552567b6
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sat May 15 12:51:31 2021 +0300

    Replace VSeparator with Separator

 src/preferencesdialog.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/preferencesdialog.cpp b/src/preferencesdialog.cpp
index f48866b8..89a0431c 100644
--- a/src/preferencesdialog.cpp
+++ b/src/preferencesdialog.cpp
@@ -352,7 +352,7 @@ namespace gnote {
     font_face->set_hexpand(true);
     font_box->attach(*font_face, 0, 0, 1, 1);
 
-    Gtk::VSeparator *sep = manage(new Gtk::VSeparator());
+    Gtk::Separator *sep = manage(new Gtk::Separator(Gtk::ORIENTATION_VERTICAL));
     sep->show ();
     font_box->attach(*sep, 1, 0, 1, 1);